AP BIOLOGY

HEREDITY

BASICS OF PROBABILITY

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
You give the answer to a probability problem as 6/5. The teacher marks it wrong. Why?
A
It should have been 5/6.
B
Its not written as a percent.
C
Its more than 1.
D
Its not written as a decimal.
Explanation: 

Detailed explanation-1: -Answer: The probability that he knew the answer to the question, given that he answered correctly is 24/29.

Detailed explanation-2: -For every question, there are two outcomes: Either you answer correctly or you don’t. If you pick a random answer, the probability of guessing the right answer is one out of four, 1/4, or 0.25. Consequently, the probability of guessing wrong is a lot higher at 3/4 or 0.75.

Detailed explanation-3: -Finding the probability of a simple event happening is fairly straightforward: add the probabilities together. For example, if you have a 10% chance of winning $10 and a 25% chance of winning $20 then your overall odds of winning something is 10% + 25% = 35%.

Detailed explanation-4: -If two coins are tossed simultaneously, what is the probability of getting exactly two heads? From a well-shuffled deck of 52 cards, what is the probability of getting a king? In a bag, there are 5 red balls and 7 black balls. What is the probability of getting a black ball?

There is 1 question to complete.